Sole and heel trimming machine



Oct. 9, 1928.

J. H. GEORGELIS SOLE AND HEEL TRIMMING MACHINE 2 Sheets-Sheen Filed Feb.' 1, 1926 .lan-LES I-l. E

e nr' E lil-L5 gwwntov Oct. 9, 1928.

J. H. GEORGELIS SOLE AND HEEL `TRIMMING MACHINE 2 Sheets-Sheet Filed Feb. l, 1926 JEJTLES H. ECH'l E115 Syvum/toc attenua@ Patented Oct. 9, 1928.

UNITED lSTATES .PATENT orifice.r .l

:rms n. enonanus, oranns'rom mulssaomrsincera.

u, SOLE AND EEE-L TBIIIING MACHINE. l

Application led i'ebruary of the cutting machine 'as to prevent the Y cutter from cutting or scratching the coverg of the heel during the trimmingof the lift. f v

A. further object o'fthis invention isthe provision of an im roved shoe trimming machine unit, emb ying a rotary cutter,l

and novel means to guard the shoe' during the trimmingI orcutting operation, to prevent injury to the shoe. 3

' A further object of thisinvention is the V2 57 VVprovision of an improved shoe trimmer 'or cutter, embodying novel 'guard means to.'

facilitate the sole trimming of shoes, infan accurate and elicient relation.

A'vfurther objectA of this invention `is' the provision of an improved shoe cutting or.

trimming machine, including a rotary trim-4 ming cutter, with. guard, means rotatable therewith to facilitate both edge and sole trimming, and prevent injury to the shoe.

Other objects and advantages of thisv in- .vention will be apparent during the course of the following detailed description.

In the accompanying drawing, forming a partof this specification, and wherein simi'- Y lar reference characters designate corresponding parts `throughoutthe several views, VFigure 1 is a longitudinalsectional-view taken thru the vimproved'trimming cutter, showing the relation of parts during the trimming of a lift o f a shoe.

, Figure 2 is a. fragment-ary plan view of the details of the improved trimmer. Figures 3A and 4 are transverse sectional views taken substantially on their respective lines in Figurel of the drawing.

Figure 5 is a fragmentary viewA showing more-particularly means to lock the con- Aventional slotted member of a rotary trimming cutter immovable with respect to the cutter. Y A Y Figure 6 is a detailed sectional view oa 1, 192e. .semi No. 85,353.

rotary cutter, showing adjustable guide means to gage the bevel cutting 'of the sole cia shoe.

Figure 7 is a cross' sectional view of details illustrated in Figure 6, in collapsed position.

Figure 8 is a simplified view ofea guard sleeve placed upon a slotted member of 'a rotary cutter in simplified manner.

In the'drawing, wherein for the purpose bodimentofthe invention, theletter A may generally designate the improved trimming cutter, which may comprise a cutter. head B connected for rotation with a rotaryv shaft C and including a novel retaining' and guard means Y D in a cooperating relation there- -with, An adjustable slotted frame E for `receiving Athe cutter head B is mounted by means F lon the shaftC in cooperativerelation with the cutter B.' Novel guard means G is provided .upon the trimming cutter A. to facilitate vsole trimming and'expedite the cuttingv operation. v

The shaft C is of conventional form, at

the' free end thereof including a; reduced tapered cutter receiving shank 10 and a tapered shoulder 11 between the shank 10 and the body 12 of the shaft C which tapers into the body 12 in a divergin relation therewith from the shank 10. 'he shank 10. at the free end thereof is provided with an inwardly extending screw threaded socket adapted to deta'chably receive the screw threaded shank 14 of a retaining screw 15.

The cutter B is of the conventional form, and it may include the tan entially disposed cutting blades 17 in space relation, the top peripheries. of which may slope rearwardly 1n converging relation, and they may beshapedto conform to any cutting operation desired, `and at the rear end`of each blade anupwardly extendingrcutting projection 18 Imay be formed, normally adapted to be recei'ved in the spaces ofthe slotted member E, conventionall provided upon the rotary cutter A. T ecutter head B. alsoincludes the sleeve portion 20 rigid with the blades 1T, which receives thereinthe reduced shank 10 of the head B, and vat its rear annular edge abuts against aretaining washer 21 which is heldin position against movement longitudinally of the shaft C by abutment4 agalnst the tapered shoulder 11. a

As a means of retaining the cutter head B on the shaftC, the guard, member D is" provided, which 'serves the func- 65 of illustration is shown only a preferred emtionl ordinarily provided on the conventional cutterpbut which is formeddiierently in order to provide a guard to prevent mutilation 4of a shoe duri the heel trimming or other cutting operation. The member D is referably of disc-shaped formation, includlng a central hub centering projection d8 adapted vto fit in the sleeve 20; the member D having a central opening25 therein for receiving the screw threaded shank 14; the screw 15 including an enlarged head adapted to clamp the guard member D against the cutter `B to retain the latter in ,position on the shaft C, as is obvious. It is at the outer periphery or margin of the member D where the novelty of this vinvention appears. Inconventional rotary trimming cutters, the

retaining member which corresponds to the member D has a sharp outer edge, which permits the cutter blades to mutilate the shoe'during a trimming operation, and performs practically no vguard function whatsoever. During thetrimming of the lift 30 on the heel 31 of a shoe, as illustrated -in Figure 1, with the conventional rotary cutter, it is not easy to trim the heel properly, because of the sharp edge of the retaining disc or collar of the conventional cutter which enters 'the joint between the lift of the shoe and the heel body and permits cut-- ting of the lift' farther inwardly than should be the case, and permits the cutting and scratching of the covering of the heel; very often ruiningl the heel of theshoe. Toobviate'this the improved guard member D of the member E opposite the extensions 40, for detachable connection with an internally vscrew threaded end of a sleeve 43 comprising art of the means F. 4

. T ev means F includes acollar orl abutnent 45 adapted to be rigidly keyed upon the shaft C as by means of a set screw 46, which extends radially in projecting relation. outwardly therethrough. The .retaining sleeve 43 is provided with an annular 75 inwardly extending flange 47 at the end thereof remote from the cutter B which is adapted to abut against the end annular edge at the' rear of the collar 45. When tle yslotted member E and the retaining sleeve 443 are in screw threaded engagement, they are adapted to contain a compression spring 48 under compression between the rear end edge of the body 41 of the slotted member E and the forward annular edge of the collar 45; the tendency of the spring 48 being to urge the slotted` member E forwardly toward the cutter B; the member E being thus held in osition by means of abutment of the retaining flange 47 against the col- 00 lar 45. This positions the rear ends of the blades 17, and particularly the extensions 18 of the cut-ter B in the spaces between the extensions 40 of the slotted member E, in accordance with conventional construction well known to those' skilled in the' art to which this invention relates. vIn order to permit' the longitudinal movement of the slotted member E upon the shaft to cover` and uncover portions of the blades ofthe 10 has? a blunt peripheral -edge 35,1to -preventJ` cutter B, a longitudinal slot 50 is formed. in

the member D ventering the joint between the lift 3() and the body 31 of the heel, and therefore insures that tle blades of the cutter B will eliicieiitly cut the lift30 to the .proper gage, since the blunt periphery 35 of the member D will always engage the .body 31 to prevent ya too far cutting lof the lift 30." The blunt v.edge 35 maybe of various shape s, but` at the corner 36 adjacent the corner edges of the blades 17," it is preferred that the member D project for about }4 of an inch from the outer periphery of the blades 17. In the preferred instance. the peripheral edge 35 in width should conform to the contour of the body`-31vof lthe heel, to contact the heel across the major width of the periphery35, and prevent mu tilation of the heel `during the trimming operation.

The sltted member E and the means F' for retainingl the same in position with respect tothe cutter head B are conventional features, with the exception of means herein employed, to retain thev member E immova-- ble ylongitudinally of the shaft C. The

' slotted member E conventionally consists of the spaced extensions 40, mounted on a cylindrical shaped body 41 which is externally screw threaded'at 42 inwardly from the end the retaining sleeve '43, as is Iillustrated in Figure 5 of the drawings, and the projecting end of the screw 46 is adgpted to ride alongrthis slot 50 when it is' de- 105 sired that the slotted member E \have a relative movement longitudinally of the," shaft C toward and away from the cutter B to accomplish certain types of shoe trim- 'ming and cutting. However, in accordance 11 with the novelty of this invention it may be desired to hold the slotted member E' against longitudinal movement with respect to the' shaft C, and to this end a lateral slot f 51. extends from the slot 50 at therear end 115 thereof, in an L-shaped relation with the length of the slot 50, and into which the upwardlyextending end of the s et screw 46 may be received, as illustrated in Figure 5 of .the drawings, and it can then be readily understood that the retaining `sleeve 43 is keyed to the shaft C against longitudinal movement, and consequently the member E cannot move longitudinally of the shaft C,

but always holds a definite fixed relation with respect to the cutter B', until the sleeve 43 is rotated to permit riding ofthe slot 50 relative to the set screw 46 whencontained therein.

Referring to the gjard means the same leo includes a.retaining sleeve or member^55 adapted to be adjustably secured upon the sleeve 43 of the means F in a set position thereon, to rovide an annular abutment at the cutterV acing edge 56 thereof, against which one end of a spiral compression spring 57 may abut in orderv to urge a. guard sleeve 58 of the means G forwardly with respect to the cutter B, in order to provide a sole trimming guard therefor. i

The retaining member or sleeve 55 may be held in adjusted fixed relation upon the retainingsleevel by means of a set screw 60, as is illustrated in Figures 2 and 4 of the drawings. This sleeve or retainingmember 55 has `a slot 61 extending longitudinally thereof, into which the upper end of the set screw-46 may project, in order'to'permit 'access to the set screw 46; to permit assemblage of the retaining sleeve l55; and to permit ofV its adjustment longitudinally of the sleeve 43 to a desired set relation with respect thereto, in'order to vary the tension of the spring 57.

rI he guard member 58 is of sleeve like formation, or hollow cylindrical in forma-` tion, and includes the enlarged forward portion 65, within which the slotted member E is received; the forward end ofthe portion 65 being entirely open, so that the portion 65 may ride overv the rear end of the cutter- B, in` a shoe cutting guard relation with respeet thereto. The forward edge 67 of the portion 65 is preferably flat, or blunt and arranged in a plane at right angles to the axis of the shaft C, and consequently the axis of rotation of the cutter B. This edge 67 provides a rest surface against which the surface of the shoeedge or heel may abut to guard and guide the position of the shoe during its cutting operation, as is readily apparent.

In order to Yinsure that the surface 67` will be sufficiently wide it may be desired to provide an annular outwardly extending flange 69 at the front of the enlarged portion 65 of the guide member 58, as illustrated in the drawing;the front surface 67 arcuating into sloping relation along the flange 69. Themember 58 also includes the rear portion 7 0 of sleeve-like formation, of lessdlameter` than the portion-65, and at the juncture of the portions 65 and 70 a'shoulder 71 is 'provided, tapering in converging relation from the portion 65 towards the portion 70, to provide an internal shoulder which is adapted to abut against the tapered shoulder 72 provided on the slotted member E, and facing away from the cutter B, as illustrated in characters have been lgiven lto the parts of 'Figures 6and 7, as above described for the Figure 1.of the drawing. The sleeve like portion 70 of the member 58 receives the portion 55 in telescopic lrelation therein, and the member 58 provides a shoulder 77 against which the other end ofthe spiral spring 57 abats, in order to urge the member 58 forwardlyr against the shoulder 72, into guarding relation over the blades of the knife or cutter B.

It is readily apparent that during the sole trimming operation the top or guard member 5 8 plays an important part in guiding Vvthe shoe to gage the proper cutting of the operation, and thus insuring that the shoe will not be dama-ged by reason of inaccurate cutting. The length of adjustment of the sleeve 58 may be regulated by adjustment of the member` 55. To prevent rotation of the member 58 it is' preferred to provide a radial pin 80 rigid on the member 55 which extends into-a slot 8 1 extending inwardly from the rear edge of the guard cap or member 58,.-

as illustrated in Figure 2 ofthe drawings.

It is within the contemplation of this invention to\ prevent the longitudinal movement of the member 58 with respect to the cutter B, and to this end a shallow opening or slot 83 is provided inwardly from the rear end of the member' 58, as illustrated in Figure 2 'of the drawings, to receive the pin 80, it" of course being necessary to adjust the position of the member 55V inorder to have this arrangement `of parts. However, in this manner the member 58 may be placed so that its front guardor guiding-edge 67 is placed in a vertical plane at any desired right angledl relation with respect'to the axis of the rotary cutter and the blades thereof, tomost eiciently perform the cutting. operation desired.

From the foregoing description-5f this invention it isapparent that a novel heel and sole trimming guard and guiding device has been embodied infarotary trimming cutter,

which embodies conventional features, and by means of which the sole and heel edge trimming may be more elciently accomplished than with present cutter.

' In Figures 6 and 7 is showna rotary cutter Y head H supportednpon a rotary shaft K in an head or. ame D is mountediby the means F abovedescribed upon the shaft K, inV a cooperative relation with lthe cutter'H, and the guard means G is'provided upon the improved cutter, to facilitate trimming operations. p

In so far asapplicable the same reference improved rotary cutter A, andthe normal operation of the parts of the cutter illustrated in Figures 6 and 7 is the same asi operation for the invention A.'

approved manner.' The slotted Additional novelty is given to the cutter of Figures 6 and 7, in that the cutter blade portions of the slotted head or frame' D are providedv with inclined cutting faces 80,

. lnclined with respect ,to the axis of the shaft the sole 85 against the .'sloping edges 80 of the slotted member D at the same time that the blades of the cutter H are cutting into the outer periphery of the sole 85. At the same time it is preferred that the side sleeve or member D be set so that the outer blunt riphery 67 thereof bears'a definite relation with respect to the cutting edge 80 of the slotted member D. That is, it is preferred that .ject outwardly o an inclined cutting portion of the edge 80 rothe plane of the gui g edve 67 when the sleeve G is positioned in a Idellinite guiding relation with respect to the slotted member D this tapered cutting portion which lies in such relation, of course, yingoutwardly of the pleriphery of the blades of the cutter head in order to cut the bevel 87 on the sole 85, as can'readily be understood. This bevel portion is indicated by numeral90 in Figure 6of ,the drawings.' To hold the guide member @the sleeve G. in this osition, it is preferred to place an ad- ]'usta le retaining screw or member 91 in a a screw threaded opening 92 provided 'thru the tapered shoulder 71' of the guide sleeve G which abuts a ainst the internal inclined boulder 72.l of the slotted member D', as 'llustrated'in 'Figure 6 'of the drawings. It

is thus readily apparent that depending upon gul the 'length vto whlch the adjustin screw 92.

extends inwardly'of the inner su ace of. the shoulder 71, the guide sleeve .'G' may be adjusted with respectto the 'slotted member. Df to variably position the ,blunt guiding edge 67 'thereof with respect tothe cuttin surfaces 'of the 'cutter'he'd..H, and slotte member D.

AS is illustrated intrigure'z of the awwings, when the screw 91 is adjusted as to be .out of engagement withthe shoulder 72 to permit the shoulder 71 to move thereagainst, 'the guiding member D will be moved by its spring 57 .forwardly to be entirely received within the compartment of the guide sleeve portion 65, and torender the cutting of the bevel-on' the sole 85 impossible. Byr extending the screw 91 into the sleeve G. the degree -of bevel cut on the Sele. of the shoe. eferrmcr to Figure 8 ofthe drawings, the same sliows the application of a speclalg type of guide sleeve* N, where a particular ting may be 'varied .vided with straight cutter faces 95, in a lane 1 at rightV angles to the axis of the shaft and `cutter head B, although they may var from .this if desired. The guide member however, is .fitted tightly, as by snug driving, or by other means, on the outer of the' 'slotted head o r frame so as to position the forward .guiding surface '97 i of the' guide sleeve N flush with the forward edges 95fof the slotted member E'. In this manner the guide sleeve N is rigidly located with the slottedmember E', in a permanent guiding relation, and all of the spring urged details of the above described forms of inventi n may be dispensed with. Otherwise the m ting of the cuttery details illustrated in Figure `8 are the same as above described and similar reference characters have beenapplied thereto, in so far as 'consistent Y Various changesv inthe-shape, size, and arrangement. of parts may be made to the forms of invention herein shown and described, without departing om the spirit of the samer the scope of e claims.

I claim: 1. In a ishoe trimming machine the combination of ashaft, a rotary trimming cutter o n the shaft, a sleeve-like guard movable along the shaft including a 'sleevellike portion forwardly open to receive the' rotary cutter therein and` providing a forward 'de surface lying peripherally outwardly of therotary cutter against which a shoe may-rest during an edge cuttingoperaton, rspring means to urge the guidev sleeve tot wards the rotary cutter to a redetermined guide' position, and'` meansY or fixing the guide sleeve in a. particular 'guiding and guarding relation with respect to the rotary cutter to prevent longitudinal movement of the sleeve with respect to the cutter.

2. In a trimming device'of the class described a shaft,a rotary trimming cutter mounted Vonfthe shaft, a collar, means permitting adjustment-of the collar on theshaft to a desired position thereon, a guard sleeve of substantially v cylindrical formation, spring means between the said sleeve and the collar to ur'gethe sleeve towards the rod tary cutter, means to limit the movement of the sleeve towards the rotary cutter, said -sleeve havin aguide edge located peripherally outwar y of the cutter and against which a shoe may abut during its cutting operation, and means to hold the sleeve staphery 96 1 tionary-against any movement longitudinally of the shaft.

3. Ina trimming machine of the class d es Cribed a shaft, a rotary cutting trimmer on the shaft, an abutment on the shaft, a .slotted member movably associated in-blade intermeshing relation-'with the rotary cutter, ,a sleeve connected with the slotted member 'A adapted to engage against the said abutment 'to-limit the movement of the slotted member forwardly towards the rotary cutter, spring means normally urging the said sleeve against said abutmentl and the slotted member forwardly vtowards the rotary cutter, said spring means permittingr movement of the slotted member-away from the cutter and longitudinally' of said shaft, and guide means receiving the slotted member therein including an annular portion overlying the rotary' cutter in peripherally spaced relation therewith and providing a shoe abutting surface adapted to act as a guard to prevent excess cutting of a shoe during a trimming operation. 4. In a trimming machine of the' class described a shaft, a rotary cutting trimmer on the shaft, an abutment on' the shaft, a slotted member movably associated in blade intermeshing relation with the rotary cutter, a sleeve connectedwith the slotted member adapted to engage against the said abutment to limit' the movelment of the slotted member forwardly towards the rotary cutter, spring means normally urgin the said sleeve against said abutment an the slotted member forwardly towards the rotary cutter, said spring means permitting movement of the slotted member away from the cutter and longitudinally of said shaft, and guide means receivingrthe slotted member therein'including an annular portion overlying the rotary cutter in peripherally spaced relation therewith and providing a shoe abutting surface adapted to act as a guard to prevent excess cutting of a shoe during a trimming operation, Y and spring means normally urging said guide means into' such relation towards the cutter and permitting movement of the annular portion longitudinally of the shaft away from the cutter. 5. In a trimming machine of the class described a shaft, a rotary cutting trimmer on the shaft, an abutmenton the shaft, a` slotted member movably l associated in blade l intermeshingrelation with the rotary cuter, a sleeve connected with the slotted memer adapted to engage against the said abutlent to limit the movement of the slotted er, spring means normally urging the said leeve against said` abutment and the slotted l ember forwardly towards the rotary, cuter, said springcmeans permitting movement f the slotted member away from the cutter l l ember forwardly towards the rotary cut and longitudinally of said shaft, guideV means receiving the slotted member-therein including a' sleeve overlying the rotary `cutter in-peripherally spaced relation therewith and provlding a shoe abutting surface adapted to act as a' guard to prevent exce cutting of a shoe during a trimming opera.- 'tion, and means to lock the slotted member to the shaft against anylongitudinal movet ment' thereon. v

6. In a trimming machine of the class described a shaft, a rotary cutting trimmer on the shaft, an .abutment on the shaft, a slotted member movably associated in blade intermeshing relation with the rotary cutter, Aa sleeve connected with the slotted member adapted to engage against the said abutment to limit the movement ofthe slotted member forwardly towards the rota cutter, spring m/eans normally urging te said sleeve against said abutment and the slotted member forwardly towards the rotary cutter, said spring means permitting movement of the slotted member away from the cutterv lll) to the. rotary cutter against any longitudinal movement with the axis of the rotary cutter.

7 In a trimming machine for shoes the `combination of a rotary shaft, a rotary, cutter for the shaft, a slotted member, spring means for urging the slotted member into blade intermeshing relation with the cutter,

means to selectively hold the slotted 'member in a fixed relation with respect to the rotary cutter to prevent longitudinal movement along the shaft, a sleeve'like guard member including a portion annularly surrounding the slotted member and the rear end of the rotary'cutter and providing a rest sur-face in a plane at right an les to the axisJof the shaft and lyin perip erally outwardly of the cutter, anv spring means urging said sleeve intol abutment with the rotary cutter to a guarding relation with respect -to the rotar cutter.

- 8. n a trimming machine of theclassdescribed a shaft, a rotary cutter for the shaft,

an abutment on the shaft, means permitting adjustment of the abutment along the shaft, said shaft providing a forward annular edge, a guard sleeve telescopically disposed over the forward end of said .abutment and providing an internal shoulder facing rthe '5 rotary cutter, means to limit the .forward tudinal movement of the guide sleeve 'along forward edge of the abutment, a spiral wardly of the rotary. cutter to provide :1 spring between said shoulder and the forshoe rest to guide the shoe during a cutting. 10 ward edge of the abutment normally urgoperation, and means to connect the guidel ing the guard sleeve forwardly towards the sleeve with theabutment to prevent longi` movement of the guard sleeve towards the the axis-'of the shaft. rotary cutter, said rota cutter including a forward surface perip eralljr lying out- JAMES' H. GEORGELIS.- 

